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곱셈 2자리 X 2자리

1

		3	1
		4	7
	2	1	7
1	2	4	0
1	4	5	7

2

		3	1
		4	3
		9	3
1	2	4	0
1	3	3	3

3

		9	2
		2	8
	7	3	6
1	8	4	0
2	5	7	6

4

		2	4
		7	2
		4	8
1	6	8	0
1	7	2	8

5

		4	2
		6	4
	1	6	8
2	5	2	0
2	6	8	8

6

		4	4
		4	3
	1	3	2
1	7	6	0
1	8	9	2

7

		9	5
		7	8
	7	6	0
6	6	5	0
7	4	1	0

8

		3	8
		4	3
	1	1	4
1	5	2	0
1	6	3	4

9

		3	2
		6	7
	2	2	4
1	9	2	0
2	1	4	4

10

		4	7
		4	4
	1	8	8
1	8	8	0
2	0	6	8

11

		2	2
		2	5
	1	1	0
	4	4	0
	5	5	0

12

		4	4
		2	0
			0
	8	8	0
	8	8	0

13

		6	3
		2	3
	1	8	9
1	2	6	0
1	4	4	9

14

		8	4
		2	2
	1	6	8
1	6	8	0
1	8	4	8

15

		8	2
		6	1
		8	2
4	9	2	0
5	0	0	2

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